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tr.v. de·na·tured, de·na·tur·ing, de·na·tures
1. To change the nature or natural qualities of.
2. To render unfit to eat or drink without destroying usefulness in other applications, especially to add methanol to (ethyl alcohol).
3. Biochemistry
a. To cause the tertiary structure of (a protein) to unfold, as with heat, alkali, or acid, so that some of its original properties, especially its biological activity, are diminished or eliminated.
b. To cause the paired strands of (double-stranded DNA) to separate into individual single strands.
4. Physics To add nonfissionable matter to (fissionable material) so as to prevent use in an atomic weapon.

de·na′tur·ant n.
de·na′tur·a′tion n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.denaturant - any substance that serves as a denaturing agent
substance - a particular kind or species of matter with uniform properties; "shigella is one of the most toxic substances known to man"
References in periodicals archive ?
The Green Logic product line by PPG offers manufacturers environmentally responsible options for paint denaturants or detackifiers used in water-washed paint spray booths.
This facility will be used mainly to determine the parameters of child and infant nutrition including the entire range of pesticides as well as the determination of unauthorized denaturants in alcohol and spirit drinks, illegal drugs, food additives and contaminants, and further detecting food adulteration.
In general, this can be done by increasing the temperature, adding chemical denaturants or changing the pH.
Paint denaturants, or "detackifiers," are used in automotive-plant paint booths to help reclaim oversprayed paint.
Focusing on theory and practical applications for both established methods and new procedures, the book covers areas such as protein interactions with water and salts, the effects of molecular crowding, methods for studying flexibility and intramolecular interactions in proteins, methods for characterization of the unfolded state, single-molecule methods, and a new application of denaturants to address protein stability in vivo.
The amount of allowable denaturants, for purposes of the alcohol fuels credit, is reduced from 5% to 2% of the volume of alcohol for fuel sold or used after December 31, 2008 (Sec.
Denaturants help prevent protein precipitation and reduce loss of albumin associated proteins.